May not be what you had in mind, but I and most of my shadetree buddies run air lines in the garage out of black pipe. Run the first pipe straight up near the compressor, water trap at the bottom, and then just insure there is a small slope downward (can be as little as an inch over ten feet) so that moisture collects at the end, where you put your end water trap / valve.
We generally have taps every 10~20 feet around the garage to attach air lines / tools. Taps should be pointed up to avoid a water collection point. Eliminates long air lines which has it's own advantages.
The volume inside that pipe is air storage volume ... it's the same as using a larger storage tank on the compressor itself. In contrast to air lines, where the small diameter is an impediment to air flow, it's an improvement of flow over the same distance. That in turn allows your compressor to act like it is larger than it really is. The additional storage is easily calculated with some simple math so you know how big your "new" storage tank is.
Black Pipe fittings are easily found, it's easy to work with (if you need a thread cut on a custom length, you can get that done for you where you buy the pipe, or at any shop that deals with heavy duty equipment, usually. Appropriate air fittings easily fit into off-the-shelf black pipe fittings. A little gas tape (yellow teflon) and some All-Round ® or pipe straps and you're done. Forever.
The idea for this was given to us by a buddy many years ago who became an Aircraft mechanic.